Geoffrey Clifton-Brown: I congratulate my hon. Friend on this excellent Bill. I have two questions before he winds up. First, can he say why the figure of 150 years was chosen? As a fellow chartered surveyor, he will know that most leases are for either 99 years or 999 years, so 150 is unusual. Secondly, most explanatory notes to a Bill contain some form of financial appraisal. Can he say whether any figures have been produced on the benefit of Kew?

I assume that the Bill gives the power for a one-off 150 years, not a succession of 150 years. I say this so that when our successors in 150 years’ time look back at the Hansard of this debate they will have a clear answer to what was in our minds at the time.